Sash-holding device



1. wfloNEs'. SASH HOLDING DEVICE.`

I APPLICATION FILED SEPT I9, i919. 1,373,964. Patented Apr.5,.1921'.

A TTORNEY.

JOHN W- JONES, or nannonrrntn, New teaser. l'

' seen-HOLDING DEVICE.

Specification of Letters Patent.

Patented Apr. d', 1921..

Application led September '19, 1919. Serial No. 324,911.

' tion.

The invention relates. to window sashes and has for an object to provide a structure for a` window frame and the sash, doing away with the usual sash weights and permitting of raising or lowering the sash relative to the frame and holding the sash in any desired position relative to the frame.

The invention comprehends among other features a device which may be more aptly termed a weightless window sash and whereby the usual sash weights and cords or chains'for holding the latter, are dispensed with, suitable anti-friction balls being employed to facilitate the sliding operation of the sash relative to the frame and for holding the sash in any desired position.-

In the further disclosure of the invention reference is to be had to the accompanying drawings constituting a part of this specication, in which similar characters of ref- Y erence denote corresponding parts'in all the views, and in which,-

Figure 1- is a fragmentary elevation of a window sash and frame with parts broken away to disclose the lunderlying structure.

Fig; 2- is a fragmentary enlarged vertical sectional view of the structure shown in Fig.` 1, and

Fig. 3- is a fragmentary horizontal sectional view taken substantially on the line 3-3 in Fig. 2.

Referring more particularly to the views, the numeral 10 indicatesa sash and the numeral 11, the window frame thereof, 12 indicating the usual parting strip between the upper sash 1 3 and the lower sash 10, with the numeral 14 designating the front and back bea-dino strips. It will of course be understood that the upper sash and frame.,

construction and'lower sash and frame construction are. alike and therefore l will only describe one application of my devlce to one of the sashes, namely the lower sash. In the window frame 11, l preferably secure a vertical housing 15, disposed to lie in the dgroove 16 formed by the parting strip 12 an beading strip 14, the housing being suitably secured to the window frame by suitable screws 17. The housing consists substantially of a rear plate 18 and a front plate 19 with expansible helical springs 20 interposed betwe'en the plates as shown, the front plate 19 being held in spaced relation with the rear plate 18 by the springs and prevented from extending too far forwardly (by a stop flange 21 formed lon the ends of the front plate and extended beneath another flange 22 on each end of a forwardly extendmg portion 23 of the rear plate 1S.

Suitably riveted or otherwise secured to the front plate 19 is a holding or supporting plate .24 which constitutes a part of the houslng and 1s formed with a series of cupped portions 25 vin which antiffrictionballs 26 are loosely disposedv with one of the balls namely the'one indicated by the numeral 27, slightly larger than the others, which latter acts to support the ball 27 in position so that a portion of the ball will extend through an opening 28 in each cupped portion 25. Between the cupped portions the holding plate 24 is secured directly against the front plate 19 by rivets 29 as mentioned heretofore so that each cupped portion will be isolated from the other. l

The sash 10. has the side sill or upright 3() thereof formed with a series of cupped vportions 31, inthe nature of indentations in the' edge of the upright as shown anda strip or plate 32 conforming to the'fedge of the upright is secured by suitable screws 33 thereto, said V'plate bein formed with lcup ed-portions 34 eX- tending to the cuppe portions l31 with the screw 33 passing into the upright betweenI the adjacent cupped portions and opposite the points of rivetlng the holding plate 24 to the front plate 19. lt will now be seen that the cupped portions 25 of the holding plate, bulging out into the cupped portions 34 of the plate 32, in fact are in the nature'of projecting contact surfaces or elements with one of the balls 27 in each one of the projecting contact elements adapted to have its periphery engage and bear against. the plate 32 as shown so that the projecting portions of the upright between adjacent projecting elements of the holding the sash shown in Fig. 1 is moved upwardly the *resiliency of the springs 20 will permit the holding plate and its partsI to move backwardly into the window frame so that the plate 32 can ride over the anti-friction balls 27 and permit of the window being raised or lowered without great effort.

It will of course be understood that the described structure may extend any desired length along the edge of the sash and in the frameV and that the springs 20 can be made of a desired strength to offer sufficient resistance to preventa heavy open sash from moving downward until a downward pull is exerted thereon.

By the provision of the anti-friction balls mentioned, I eliminate as far as possible, excessive friction which ipresent, would prevent the Sashes from being raised or .lowered except by undue eil'ort and the anti-friction balls furthermore permit of raising or loafA ering the saehee with very little noise;

Having described my invention, I claim* 'l' he combination with a window frame having a slidingly mounted sash,v of a sash holding device comprising a laterally movable hollow member located between the side rail of the sash and the adjacent side of the 'frameu a downwardly projecting wall ncluded in the hollow member for engavement in spaced sockets provided in the adjacent edge of the sash to hold the latter in adj usted position, an anti-friction ball proj ect ing through an opening in the hollow member for engagement with the soclreted edge of the sash to facilitate adjustment and antiriction balls located within the hollow member and providing a bearing for the first mentioned ball. l

In testimony whereof l aiiix my signature.

.ilona vv. Jones. 

